Method of treating corresponding parts of pairs of shoes



METHOD OF TREATING CORiRESPONDING PARTS OF PAIRS OF SHOES Original Filed May 5, 1918 T Lf NEWELL V. DYER, 0F HOLBROOK, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW J'ERSEY, A CORPORATION OF NEW METHOD OF TREATING CORRESPONDING PARTS OF PAIRS OF SHOES.

Original application filed May 3, 1918, Serial .No. 232,278. Divided and this application filed May 18,

To all whom it may concern:

Be it known that I, NnwELL V. Dyna, a

citizen of the United States, residing at Holbrook, in the county of Norfolk and State of Massachusetts. have invented certain Improvements in Methods of Treating Corresponding Parts of Pairsof Shoes, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to methods of treating the corresponding parts of pairs of objects, particularly to the handling and identifying of shoe parts, and thisapplication is a division of my application Serial No. 232,278, filed May 3, 1918.

In the manufacture of shoes the. usual practice is to arrange the stock when out with the corresponding pieces of the right and left shoes of a pair together and these parts are separately stamped with symbols indicating, for example, the case number, size, width and match marks. Ordinarily, these indications are applied to the flesh side of one of the pieces of the pair, after which the symbols are similarly placed upon the other piece.

An object of the invention is the provision of a method whereby corresponding leather parts may be protected and stamped in an effective manner. In one aspect the invention consists in a method of operating on the corresponding parts of pairs of shoes, in which the pieces are placed together with their grain or finish sides in protecting contact, preferably with the edges in registration, the pieces being thenplaced on a fixed support and stamped from opposite sides simultaneously with identifying symbols. In the accompanying drawings I have illustrated mechanism which is suitable for the performance of some of the steps of my method.

Referring to the drawings,

Fig. 1 is a longitudinal section illustrating the impression members and their supporting and actuating elements, together with a. portion of the setting mechanism;

Fig. 2 is a detail in side elevation, showing the parts as producing their impression upon two pieces of material laid with their finish sides in contact upon a supporting surface;

Serial No. 382,365.

Fig. 3 is a view similar to Fig. 1 showing the mechanism for applying the marking agent to the impression surfaces; Fig. 4 is a sectional view, enlarged, showing the work pieces with their grain sides together.

shoes, as usually constructed, have the grain or finished side of the leather outside and in the progress of the shoe parts through the factory, it is desirable to keep these finished sides clean so as not to mar the appearance of the finished shoe. soiling during the marking operation is avoided by placing the grain or finished side of onepart in contact with the grain or finished side of the corresponding partwith the edges of the parts (which are usually rights and lefts) in registration. This step results in complete protection of the pieces throughout their entire areas.

The work to be operated on consists of the corresponding parts of pairs of shoes and these parts are treat-ed in pairs as indicated in Figs. 2 and 4. If the pieces. to, when received by the operator, have their grain sides facing in the same direction, one of them will be inverted, preferably by hand, and the two pieces laid together with the grain sides facing each other as indicated in Fig. 2.

Where the pieces are those belonging to the less expensive shoes, it may not be advisable for the operator to spend much time in turning the pieces so that their edges lie in registration, but this is a desirable stepin some cases, and will, of course, serve to protect the pieces completely on the grain sides throughout their areas. Another advantage of having the pieces in registration is that each can be stamped at the same distance from the edge. The two pieces to are then laid on a suitable support such as indicated, for example, at 12 in Fig. 2 and are then stamped fromopposite sides with identifying symbols. This last operation may be, and preferably is performed by the mechanism illustrated which is constructed as follows:

Two series of stamping disks 26, with characters 28, are mounted on spindles 24; carried by levers 20 and 22 pivoted on suitably supported shafts 16 and 18. To oscillate the levers to actuate the disks, cams 42 engagingrollers on the arms 58 of the levers may be used, and, if it is desired to FFEQ.

make the impact a yielding one, thearms 58 used. This mechanism isconveniently actu ated by a cam 88 secured to shaft er and engaging a projection 86 on a bell crank lever 82 which is joined to the arms 76 by a slide 78. The disks may be set in any desired manner as by setting disks 94.- carried on. the spindles 96 and 98.

The above described mechanism will actuate the stamping disks to mark the two pieces of work simultaneously with identifying symbols. Other mechanism may be used, or'the stamping may be done by hand. The arrangement of the pieces with the flesh sides together and the stamping of the grain sides is Within the purview of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. That improvement in the method of making shoe uppers which comprises the steps of preparing a pair of corresponding parts, one for a right and the'other for a left shoe, assembling them with the outlines of the two parts substantially in registration with the grain side of one part in surface contact with the grain side of the other part so that. each finished surface protects the other, and then simultaneously placing identifying symbols on the outer or flesh sides of the pair of parts to facilitate assembling said parts in the same pair of shoes.

2. That improvement in the method of making shoes which comprises the steps of preparing a pair of corresponding parts, one for a right and the other for a left shoe, assembling them by reversing one part and placing it on the other with the corresponding surfaces in contact and simultaneously placing identical identifying symbols on opposite sides of the associated pair of parts to facilitate assembling said' parts in the same pair of a lot of shoes.

In testimony whereof I have signed my name to this specification.

NEWELL V. DYER. 

